Tae H. Joo,Ronald E. Stickney,Cynthia P. Jayne,Paula Lank,Patricia O'Hearn,David R. Hampton,James W. Taylor,William E. Crone,Daniel Yerkovich,Patricia OHearn
申请号：
US13970522
公开号：
US09248306B2
申请日:
2013.08.19
申请国别(地区):
US
年份:
2016
代理人:
摘要：
A cardiac pulse in a patient is determined by evaluating physiological signals in the patient. A medical device evaluates two or more different physiological signals, such as phonocardiogram (PCG) signals, electrocardiogram (ECG) signals, patient impedance signals, piezoelectric signals, and accelerometer signals for features indicative of the presence of a cardiac pulse. Using these features, the medical device determines whether a cardiac pulse is present in the patient. The medical device may also be configured to report whether the patient is in a VF, VT, asystole, or PEA condition, in addition to being in a pulseless condition, and prompt different therapies, such as chest compressions, rescue breathing, defibrillation, and PEA-specific electrotherapy, depending on the analysis of the physiological signals. Auto-capture of a cardiac pulse using pacing stimuli is further provided. The medical devices, or any portion thereof, can be worn by the patient or may be attached to the patient.
